Quick question. Are the main gears used in the tiagra 12 size reel brass or stainless steel? I have a tiagra 16 and 20 and 30 and they are stainless. I was wondering if the 12 reels are issued with the brass main gears as I have heard??? Does any body know? I think they are interchangable (16-12) main gears. Correct me if I am wrong, but isnt a 12 just a narrowed frame 16 reel?
Thanks for some feedback, and experience with this question. gst.